EFFECTS OF ULTRASONIC EMITTING DEVICES AS A KIND OF STRESS ON BIOLOGICAL AND PHYSIOLOGICAL CHANGES ON THE CONFUSED FLOUR BEETLE, Tribolr'um confusum (DUVAL) (COLEOPTERA TENEBRIONIDAE).

Document Type : Original Article

Authors

Department of Economic Entomology, Fac. of Agric., Cairo Univ., Giza, Egypt-

Abstract

Adult of the confused flour beetle, Tnboiium confusum (du Val) reared on
wheat flour were exposed to emissions from ultrasonic unit and other stresses
(24hrs.light, 24hrs.dark and 24hrs. 450°). Ultrasonic caused mortality in adult and
larvae .Significant differences recorded in mortality between the treated and untreated
(control) beetles during the 4 months of exposure. Also, significant differences were
obtained in length of larval duration, pupation time and body weight in adult between
the treated and the control Groups. The results also indicated that cholinesterase
activity decreased with the active ultrasonic-emitting devices.
Journal of Plant Protection and Pathology
Volume 31, Issue 4
April 2006
Pages 2445-2450

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